The influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface.

Hdl Handle:
http://hdl.handle.net/10147/263395
Title:
The influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface.
Authors:
Vard, John P; Kelly, Daniel J; Blayney, Alexander W; Prendergast, Patrick J
Affiliation:
Trinity Centre for Bioengineering, School of Engineering, Trinity College, Dublin, Ireland.
Citation:
The influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface. 2008, 30 (2):154-63 Med Eng Phys
Journal:
Medical engineering & physics
Issue Date:
Mar-2008
URI:
http://hdl.handle.net/10147/263395
DOI:
10.1016/j.medengphy.2007.03.005
PubMed ID:
17531521
Abstract:
The design of ventilation tubes or grommets is thought to have a considerable influence on their performance. A computational model (finite element method) was used to investigate the significance of four design parameters of a commonly used design of ventilation tube. The design parameters were: the length of the shaft, the diameter of the flanges, the thickness of the flanges, and the material type. A statistical analysis technique, known as a factorial analysis of variance, was used to examine the importance of the four design parameters on the dynamical behaviour of the middle ear with the implant in situ and on the magnitude of stress induced at the implant/tympanic membrane interface. We predicted that the ventilation tube alters the frequency response of the middle ear; specifically the shaft length and the thickness of the flanges were found to have a significant effect upon the vibratory pattern at the umbo. A reduced length of tube and an increased size of flange were also found to be significant for minimising membrane stress (both with P<0.001). Thus, design parameters of critical influence on optimising performance were identified.
Item Type:
Article
Language:
en
MeSH:
Analysis of Variance; Biomechanics; Biomedical Engineering; Computer Simulation; Finite Element Analysis; Humans; Middle Ear Ventilation; Models, Anatomic; Models, Biological; Otitis Media with Effusion; Prostheses and Implants; Prosthesis Design; Tympanic Membrane; Vibration
ISSN:
1350-4533

Full metadata record

DC FieldValue Language
dc.contributor.authorVard, John Pen_GB
dc.contributor.authorKelly, Daniel Jen_GB
dc.contributor.authorBlayney, Alexander Wen_GB
dc.contributor.authorPrendergast, Patrick Jen_GB
dc.date.accessioned2012-12-20T14:32:16Z-
dc.date.available2012-12-20T14:32:16Z-
dc.date.issued2008-03-
dc.identifier.citationThe influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface. 2008, 30 (2):154-63 Med Eng Physen_GB
dc.identifier.issn1350-4533-
dc.identifier.pmid17531521-
dc.identifier.doi10.1016/j.medengphy.2007.03.005-
dc.identifier.urihttp://hdl.handle.net/10147/263395-
dc.description.abstractThe design of ventilation tubes or grommets is thought to have a considerable influence on their performance. A computational model (finite element method) was used to investigate the significance of four design parameters of a commonly used design of ventilation tube. The design parameters were: the length of the shaft, the diameter of the flanges, the thickness of the flanges, and the material type. A statistical analysis technique, known as a factorial analysis of variance, was used to examine the importance of the four design parameters on the dynamical behaviour of the middle ear with the implant in situ and on the magnitude of stress induced at the implant/tympanic membrane interface. We predicted that the ventilation tube alters the frequency response of the middle ear; specifically the shaft length and the thickness of the flanges were found to have a significant effect upon the vibratory pattern at the umbo. A reduced length of tube and an increased size of flange were also found to be significant for minimising membrane stress (both with P<0.001). Thus, design parameters of critical influence on optimising performance were identified.en_GB
dc.language.isoenen
dc.rightsArchived with thanks to Medical engineering & physicsen_GB
dc.subject.meshAnalysis of Variance-
dc.subject.meshBiomechanics-
dc.subject.meshBiomedical Engineering-
dc.subject.meshComputer Simulation-
dc.subject.meshFinite Element Analysis-
dc.subject.meshHumans-
dc.subject.meshMiddle Ear Ventilation-
dc.subject.meshModels, Anatomic-
dc.subject.meshModels, Biological-
dc.subject.meshOtitis Media with Effusion-
dc.subject.meshProstheses and Implants-
dc.subject.meshProsthesis Design-
dc.subject.meshTympanic Membrane-
dc.subject.meshVibration-
dc.titleThe influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface.en_GB
dc.typeArticleen
dc.contributor.departmentTrinity Centre for Bioengineering, School of Engineering, Trinity College, Dublin, Ireland.en_GB
dc.identifier.journalMedical engineering & physicsen_GB
dc.description.provinceLeinsteren

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